If you enjoy 1960s pop music and/or barbershop harmonies, you’ll love this. Even of you don’t like those things, you’ll probably love this anyway. Baltimore singers Katie Gillis, Ali Hauger, Amanda McNutt, and Katie Macdonald are known as GQ, or Girls' Quartet. This arrangement of "I'm into Something Good" (made famous by Herman's Hermits) and "Happy Together" (a smash hit by The Turtles) shows what they do, and they do it well. -via Metafilter